Works FAQ record (Guosheng)

1) oracle11g user's default password expiration period of 180 days, after which it expires, so the data is created, the first step in going to check the expiration date, if the time has expired deadline, you need to modify indefinitely,
see: Select * FROM dba_profiles s Where s.profile = ' DEFAULT' AND resource_name = 'PASSWORD_LIFE_TIME';

Review indefinitely: ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME uNLIMITED;